bash about

To treat or handle someone or something in a very rough, aggressive, or violent manner. A noun or pronoun can be used between "bash" and "about." Please don't come into the lab and start bashing all the equipment about like that—you're liable to break something! Some of the teachers have begun to suspect that the poor child is being bashed around at home by his stepfather. Hey, if you're going to borrow my phone, don't bash it around like that!